Fitness Tracker with Heart Rate.This smart bracelet can track your heart rate and all-day activities. It can display steps taken, distance traveled, calorie burned, etc.Sleep Monitor. It can monitor your sleep quality including deep or light sleep hours, awake hours, history sleep data. You can also set different alarm clocks in the app and it will vibrate to wake you up or remind you to do exercise, take medicine, etc.Never Miss a Message/Call. It will vibrate to alert you if your phone receives a phone call, SMS text Simply connect the bracelet to your smart phone via Bluetooth and set in the app, you will never miss a call and a message.Remote Control Phone Camera. Use this function for selfie or group photos with a better pose or photo sight. Open the camera function in the app, you can use this smart wristband to easily control your phone camera. Simply rotate your wrist quickly to snap a photoWide Compatibility .App supports most smart phones or tablets with Bluetooth 4.0 or above. Support system: iOS 8.0 or above, Android 4.4